I'd have to factor in the condition of the P9
along with the "biggies" like , Raging River, Word of Command, Sink Hole, Illusionary Mask, Gauntlet of Might, Berserk....basically all the bombs that didn't show up in Revised.
If I personally were dropping that much ALL P9 would HAVE to be in mint condition. All "bombs" discontinued after Unlimited would have to be in mint to excellent condition. All others could be graded with some slack from there on.